Lawn sprinkler



June 26, 1934. R. R. SUMNER 1,964,225

LAWN SPRINKLER Filed Dec. 23. 1932 Patented June 26, 1934 UNITED STATESPATENT OFFICE 3 Claims.

This invention relates to a lawn sprinkler and has for its principalobject the provision of a sprinkler which will efficiently sprinkle arectangular plot without throwing water beyond the 3 borders thereof.

Another object is to provide a sprinkler construction which can beutilized to provide a sprinkler covering a plot of any given shape.

Other objects and advantages reside in the 10 detail construction of theinvention, which is designed for simplicity, economy, and efficiency.These will become more apparent from the fol lowing description.

In the following detailed description of the invention reference is hadto the accompanying drawing which forms a part hereof. Like numeralsrefer to like parts in all views of the drawing and throughout thedescription.

In the drawing:

Fig. 1 is a side elevation of the improved sprinkler.

Fig. 2 is a plan view illustrating the rectangular action thereof.

Fig. 3 is a cross section looking upward, taken on the line 3-3, Fig. 1.

Fig. 4 is a detail section through the head of the sprinkler taken onthe line 44, Fig. 3.

Fig. 5 is a similar section taken on the line 5-5, Fig. 3.

The invention comprises a supporting base provided with a suitable waterpassage 11, having a female coupling 12 for receiving the extremity of asprinkling hose 13. The base 10 may be of any suitable design adaptablefor receiving a hose extremity and solidly supporting the sprinkler.

The water passage 11 in the base 10 is arranged to receive andvertically support, a tubular standard 14 which terminates at its top ina 40 horizontal distributing disc 15. A series of orifices are formed inthe standard 14 immediately below the distributing disc 15. It ispreferred to arrange these orifices as illustrated in Fig. 3. In thisarrangement four pairs of orifices 16 are positioned diametricallyopposite each other at 90 intervals, and four single orifices 1? aresimilarly positioned diametrically opposite each other at 90 intervals.One of the orifices 17 is thus positioned mid-way between each two pairsof the orifices 16.

These orifices ;may be drilled or otherwise formed in the standard 14.It has been found that the drilling thereof is greatly facilitated if aV-shaped notch 18 is first formed about the standard as illustrated, toform a support for the drill points. The notch 18 is simply tofacilitate manufacture, and has no effect whatsoever upon thefunctioning of the sprinkler. The orifices discharge high velocity jetsagainst the bottom of the distributing disc 15. 50 It is desired to callattention to the fact that the orifices 16 and 17 incline downwardlytoward the hollow center of the standard 14. This incline or angle isone of the most important features of the invention. If all of theorifices 16 and 17 were inclined on a common angle, the jets dischargingtherefrom would strike the disc 15 in the outline of a circle and wouldbe reflected about the standard 15 in a circle, as is usual in thecommon ordinary garden variety of sprinklers. It can be readily seenthat if the orifices are inclined at a relatively steep angle, the jetswill strike the disc 16 relatively close to the standard l4 and bereflected downwardly at a similar angle relatively close to the base 10.Conversely, if the orifices are formed upon a relatively gradr ualangle, the water will strike the disc 15 adjacent its periphery, andwill be reflected outwardly at a gradual angle and at a greater distancefrom the base 10.

In view of the above, a structure has been provided by which therelative distance the water is thrown at given points about the disc canbe accurately controlled by the relative angle between the orificesprojecting the water. It is this principle that is employed to obtainthe square sprinkling effect for which this invention is designed. Theorifices 16 are intended to throw the Water toward the corners of thesquare as indicated at A, Fig. 2. They therefore must have a moregradual angle, as shown in Fig. 5, than the orifices 17. The orifices 17are designed to project their water toward the sides of the square,which of course is a shorter distance as indicated at B, Fig. 2. Theirangle must therefore be steeper as shown in Fig. 4.

With the angles so designed, the water will strike the disc in theoutline of a square, as shown in Fig. 3 and will be deflected outwardlyin sub- 10o stantially a square as shown in Fig. 2. The, above could beaccomplished with simply eight orifices, four at one angle, or inclineand four at another. The effect, however, is found to be more nearlyperfect if the orifices which are designed to reach the greatestdistance are formed in pairs as shown in Fig. 3. These, of course, mustnecessarily cover a larger area, and it has been found that thereflected jets from the two openings of the pair impinge against eachother to form a relatively strong central stream in the exact corners ofthe square.

In Fig. 2 the various reflected jets have been indicated by severalseries of radial lines, and have been shown separated from each otherfor the sake of clearness. It is, of course, understood that when thejets from the orifices strike the distributing plate 15, they will be sospread and diffused as to intermingle and leave no open spaces in thesprinkled area.

I have shown from the above that the orifices may be inclined to providea sprinkler which will cover an area of any desired shape. It need notbe square, and could be made to cover an oblong area by forming theorifices at two sides with more gradual angle than the orifices at theremaining two sides, and any desired number of orifices may be employed.The distance from the disc 15 to the orifices is not important, however,by positioning the orifices as close to the disc as possible, the sizeof the disc can be reduced so as to lessen weight and manufacturingcosts.

It is desired to call attention to the fact that with this sprinkler,the water is not thrown upwardly into the air in a high are as is usualwith lawn sprinklers. It is, therefore, not carried by the wind or aircurrents beyond the desired area. The water will be deflected outwardlyand downwardly from the standard 14, and is but little afiected by wind.

While a specific form of the improvement has been described andillustrated herein, it is desired to be understood that the same may bevaried, within the scope of the appended claims, without departing fromthe spirit of the invention.

Having thus described the invention, what is claimed and desired securedby Letters Patent is:--

1. A sprinkler comprising: a vertical tubular standard; means forsupplying water to said standard; a distributing disc projectingoutwardly from said standard; and a series of orifices in said standardbelow said disc, said orifices being inclined so as to project waterupwardly against said disc in an outline similar to the outline of thearea to be sprinkled.

2. A sprinkler for sprinkling a rectangular area comprising: a verticaltubular standard; a distributing disc supported adjacent the top of saidstandard; a first series of inclined orifices in said standard belowsaid disc; a second series of inclined orifices in said standard belowsaid disc, the orifices of said second series being inclined at a moregradual angle than said first series so that their projected jets willstrike said disc at a greater distance from said standard than the jetsprojected by said first series so as to be deflected toward the cornersof said rectangular area.

3. A sprinkler for sprinkling a rectangular area comprising: a verticaltubular standard; a distributing disc supported adjacent the top of saidstandard; a first series of inclined orifices in said standard belowsaid disc; a second series of inclined orifices in said standard belowsaid disc, the orifices of said second series being inclined at a moregradual angle than said first series so that their projected jets willstrike said disc at a greater distance from said standard than the jetsprojected by said first series so as to be deflected toward the cornersof said rectangular area, the orifices in said second series beingpositioned in pairs as described.

ROSCOE R. SUMNER.

